163 Precambrian Geology

Tuesday, 29 October 2002
1:30 PM - 3:45 PM

Presentations

• 1:30 PM
  3.7 GA OVERGROWTHS ON A 4.33 GA ZIRCON FROM JACK HILLS: EVIDENCE OF EARLY CRUSTAL RECYCLING
  Aaron J Cavosie, Univ of Wisconsin, Madison, Madison, WI and John W. Valley, Univ of Wisconsin, Madison, Madison, WI and Liu Dunyi, Chinese Acad. Geol. Sci, Beijing, N/A and Simon A. Wilde, Curtin Univ, Bentley, N/A and Matthew Grant, Curtin Univ, Bentley, N/A
  45628 (Technical Sessions)
• 1:45 PM
  A 3714 MA PLUTON INTRUDING THE ISUA GREENSTONE BELT, SOUTHWEST GREENLAND: THE WORLD'S OLDEST VOLCANO-SEDIMENTARY SECTION (OR, AT LEAST PART OF IT) GETS OLDER
  Stephen W. Grimes, Memorial Univ Newfoundland, St Johns's, NF and Greg R. Dunning, Memorial Univ Newfoundland, St Johns's, NF
  44964 (Technical Sessions)
• 2:00 PM
  SHRIMP II GEOCHRONOLOGY OF THE ADIRONDACK AMCG SUITE, I: EMPLACEMENT CHRONOLOGY OF ANORTHOSITES AND GABBROS
  Michael A. Hamilton, Ottawa, ON and James M. McLelland, Skidmore College, Saratoga Springs, NY and M.E. Bickford, Syracuse Univ, Syracuse, NY and Cory C. Clechenko, Univ of Wisconsin, Madison, WI and John W. Valley, Univ of Wisconsin, Madison, WI
  44184 (Technical Sessions)
• 2:15 PM
  SHRIMP II GEOCHRONOLOGY OF THE ADIRONDACK AMCG SUITE, IV: TIMING AND DEPTH OF EMPLACEMENT OF ANORTHOSITE IN THE NORTHEASTERN ADIRONDACKS
  Cory C. Clechenko, Univ of Wisconsin-Madison, Madison, WI and John W. Valley, Univ of Wisconsin-Madison, Madison, WI and Michael A. Hamilton, Geological Survey of Canada, Ottawa, ON and James M. McLelland, Skidmore College, Saratoga Springs, NY and M.E. Bickford, Syracuse Univ, Syracuse, NY
  40094 (Technical Sessions)
• 2:30 PM
  PRECAMBRIAN SUPERGENE ALTERATION OF NATIVE COPPER DEPOSITS IN THE KEWEENAW PENINSULA, MICHIGAN
  Theodore J. Bornhorst, Michigan Tech, Houghton, MI and George W. Robinson, Michigan Tech, Houghton, MI
  43426 (Technical Sessions)
• 2:45 PM
  GEOCHEMICAL AND PETROGRAPHICAL CHARACTERISTICS OF THE ARCHEAN DONGWANZI OPHIOLITE COMPLEX AND RELATED ROCKS
  R. Huson, Saint Louis Univ, St. Louis, MO and T. Kusky, Saint Louis Univ, St. Louis, MO
  45653 (Technical Sessions)
• 3:00 PM
  MORPHOLOGY OF MOLAR-TOOTH STRUCTURE IN PRECAMBRIAN CARBONATES: PETROGRAPHIC TESTS OF A GAS EXPANSION GENESIS
  Mark D. Pollock, Univ of Tennessee, Knoxville, TN and Linda C. Kah, Univ of Tennessee, Knoxville, TN and Julie K. Bartley, State Univ of West Georgia, Carrollton, GA
  38015 (Technical Sessions)
• 3:15 PM
  A PRE-GLACIAL d13C ANOMALY IN SVALBARD: IMPLICATIONS FOR THE NUMBER, CAUSES AND CORRELATION OF NEOPROTEROZOIC GLACIATIONS
  Galen P. Halverson, Harvard Univ, Cambridge, MA and A. Hugh. N. Rice, Univ of Vienna, Vianna, N/A
  44321 (Technical Sessions)
• 3:30 PM
  WEATHERING, PROVENANCE, AND TECTONIC SETTING OF THE NEOPROTEROZOIC STIRLING QUARTZITE, DEATH VALLEY AREA, CALIFORNIA: A GEOCHEMICAL PERSPECTIVE
  William A. Schoenborn, The George Washington Univ, Washington, DC and Christopher M. Fedo, The George Washington Univ, Washington, DC
  45553 (Technical Sessions)